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          LV06-01-驱动程序-02-驱动开发环境搭建
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<details class="folding-tag" blue><summary> 点击查看使用工具及版本 </summary>
              <div class='content'>
              <table>    <tr>        <td align="center" rowspan="5">PC端开发环境</td>        <td align="center" width=150px>Windows</td>        <td align="left">Windows11</td>    </tr>    <tr>        <td align="center">Ubuntu</td>        <td align="left">Ubuntu20.04.2的64位版本</td>      </tr>    <tr>        <td align="center">VMware® Workstation 17 Pro</td>        <td align="left">17.6.0 build-24238078</td>      </tr>    <tr>        <td align="center">终端软件</td>        <td align="left">MobaXterm(Professional Edition v23.0 Build 5042 (license))</td>    </tr>    <tr>        <td align="center">Win32DiskImager</td>        <td align="left">Win32DiskImager v1.0</td>      </tr>    <tr>        <td align="center" rowspan="3">Linux开发板环境</td>        <td align="center">Linux开发板</td>        <td align="left">正点原子 i.MX6ULL Linux 阿尔法开发板</td>      </tr>    <tr>        <td align="center">uboot</td>        <td align="left">NXP官方提供的uboot，使用的uboot版本为U-Boot 2019.04</td>      </tr>    <tr>        <td align="center">linux内核</td>        <td align="left">linux-4.19.71(NXP官方提供)</td>      </tr></table>
              </div>
            </details>

<details class="folding-tag" blue><summary> 点击查看本文参考资料 </summary>
              <div class='content'>
              <table>    <tr>        <td align="center">分类</td>        <td align="center">网址</td>        <td align="center">说明</td>    </tr>    <tr>        <td align="center" rowspan="5">官方网站</td>        <td align="left"><a href="https://www.arm.com/" target="_blank">https://www.arm.com/</a></td>        <td align="left">ARM官方网站，在这里我们可以找到Cotex-Mx以及ARMVx的一些文档</td>    </tr>    <tr>        <td align="left"><a href="https://www.nxp.com.cn/" target="_blank">https://www.nxp.com.cn/ </a></td>        <td align="left">NXP官方网站</td>    </tr>    <tr>        <td align="left"><a href="https://www.nxpic.org.cn/" target="_blank">https://www.nxpic.org.cn/</a></td><td align="left">NXP 官方社区</td>    </tr>    <tr>        <td align="left"><a href="https://u-boot.readthedocs.io/en/latest/" target="_blank">https://u-boot.readthedocs.io/en/latest/</a></td><td align="left">u-boot官网</td>    </tr>    <tr>        <td align="left"><a href="https://www.kernel.org/" target="_blank">https://www.kernel.org/</a></td><td align="left">linux内核官网</td>    </tr></table>
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<details class="folding-tag" blue><summary> 点击查看相关文件下载 </summary>
              <div class='content'>
              <table>    <tr>        <td align="center">分类</td>        <td align="center">网址</td>        <td align="center">说明</td>    </tr>    <tr>        <td align="center" rowspan="3">NXP</td>        <td align="left"><a href="https://github.com/nxp-imx" target="_blank">https://github.com/nxp-imx</a></td>        <td align="left">NXP imx开发资源GitHub组织，里边会有u-boot和linux内核的仓库</td>    </tr>    <tr>        <td align="left"><a href="https://github.com/nxp-imx/linux-imx/releases/tag/v4.19.71" target="_blank">nxp-imx/linux-imx/releases/tag/v4.19.71</a></td>        <td align="left">NXP linux内核仓库tags中的v4.19.71</td>    </tr>    <tr>        <td align="left"><a href="https://github.com/nxp-imx/uboot-imx/releases/tag/rel_imx_4.19.35_1.1.0" target="_blank">nxp-imx/uboot-imx/releases/tag/rel_imx_4.19.35_1.1.0</a></td>        <td align="left">NXP u-boot仓库tags中的rel_imx_4.19.35_1.1.0</td>    </tr>    <tr>        <td align="center" rowspan="2">I.MX6ULL</td>        <td align="left"><a href="https://www.nxp.com.cn/docs/en/data-sheet/IMX6ULLIEC.pdf" target="_blank">i.MX 6ULL Applications Processors for Industrial Products</a></td>        <td align="left">I.MX6ULL 芯片手册（datasheet，可以在线查看）</td>    </tr>    <tr>        <td align="left"><a href="https://www.nxp.com.cn/webapp/Download?colCode=IMX6ULLRM&lang_cd=zh" target="_blank">i.MX 6ULL Applications ProcessorReference Manual</a></td>        <td align="left">I.MX6ULL 参考手册（下载后才能查看，需要登录NXP官网）</td>    </tr>    <tr>        <td align="center" rowspan="2">Source Code</td>        <td align="left"><a href="https://elixir.bootlin.com/linux/latest/source" target="_blank">https://elixir.bootlin.com/linux/latest/source</a></td>        <td align="left">linux kernel源码</td>    </tr>    <tr>        <td align="left"><a href="https://elixir.bootlin.com/u-boot/latest/source" target="_blank">https://elixir.bootlin.com/u-boot/latest/source</a></td>        <td align="left">uboot源码</td>    </tr></table>
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<h1 id="一、网络环境"><a href="#一、网络环境" class="headerlink" title="一、网络环境"></a><font size=3>一、网络环境</font></h1><p>在进行驱动开发的时候，我们要频繁的修改设备树、根文件系统和设备树，每次都烧写到sd卡或者eMMC就很麻烦，uboot是支持从tftp下载内核和设备树，linux内核也支持直接从nfs服务器挂载根文件系统。</p>
<h2 id="1-网络开发环境"><a href="#1-网络开发环境" class="headerlink" title="1. 网络开发环境"></a><font size=3>1. 网络开发环境</font></h2><p>我们根据这篇笔记《01嵌入式开发&#x2F;02IMX6ULL平台&#x2F;LV02-开发环境&#x2F;LV02-03-网络环境-01-网络开发环境搭建.md》搭建网络开发环境，实现uboot可以ping通windows和ubuntu。</p>
<h2 id="2-TFTP环境"><a href="#2-TFTP环境" class="headerlink" title="2. TFTP环境"></a><font size=3>2. TFTP环境</font></h2><p>我们要从ubuntu下载内核和设备树文件，需要通过tftp服务，我们根据这篇笔记《01嵌入式开发&#x2F;02IMX6ULL平台&#x2F;LV02-开发环境&#x2F;LV02-03-网络环境-02-TFTP环境搭建.md》完成tftp环境的搭建，实现从ubuntu的tftp服务器目录下载文件。</p>
<h2 id="3-NFS环境"><a href="#3-NFS环境" class="headerlink" title="3. NFS环境"></a><font size=3>3. NFS环境</font></h2><p>我们linux内核启动后，需要挂载根文件系统，这个时候可以从nfs服务器的指定目录挂载，可以根据《01嵌入式开发&#x2F;02IMX6ULL平台&#x2F;LV02-开发环境&#x2F;LV02-03-网络环境-03-NFS环境搭建.md》这篇笔记完成NFS服务器环境的搭建。</p>
<h1 id="二、交叉编译工具"><a href="#二、交叉编译工具" class="headerlink" title="二、交叉编译工具"></a><font size=3>二、交叉编译工具</font></h1><p>驱动开发中的代码还是要跑在arm开发板上，还是需要交叉编译工具链，可以参考《01嵌入式开发&#x2F;02IMX6ULL平台&#x2F;LV02-开发环境&#x2F;LV02-01-交叉编译工具链.md》这里进行安装，或者参考这个也行《01嵌入式开发&#x2F;02IMX6ULL平台&#x2F;LV05-系统镜像&#x2F;LV05-02-U-Boot-01-NXP-uboot.md》。只参考安装方式即可，我后来用的是这个版本的arm gcc：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">sumu@sumu-virtual-machine:~$ arm-linux-gnueabihf-gcc -v</span><br><span class="line">使用内建 specs。</span><br><span class="line">COLLECT_GCC=arm-linux-gnueabihf-gcc</span><br><span class="line">COLLECT_LTO_WRAPPER=/home/sumu/2software/gcc-arm-linux-gnueabihf-8.3.0/bin/../libexec/gcc/arm-linux-gnueabihf/8.3.0/lto-wrapper</span><br><span class="line">目标：arm-linux-gnueabihf</span><br><span class="line">配置为：/tmp/dgboter/bbs/rhev-vm8--rhe6x86_64/buildbot/rhe6x86_64--arm-linux-gnueabihf/build/src/gcc/configure --target=arm-linux-gnueabihf --prefix= --with-sysroot=/arm-linux-gnueabihf/libc --with-build-sysroot=/tmp/dgboter/bbs/rhev-vm8--rhe6x86_64/buildbot/rhe6x86_64--arm-linux-gnueabihf/build/build-arm-linux-gnueabihf/install//arm-linux-gnueabihf/libc --with-bugurl=https://bugs.linaro.org/ --enable-gnu-indirect-function --enable-shared --disable-libssp --disable-libmudflap --enable-checking=release --enable-languages=c,c++,fortran --with-gmp=/tmp/dgboter/bbs/rhev-vm8--rhe6x86_64/buildbot/rhe6x86_64--arm-linux-gnueabihf/build/build-arm-linux-gnueabihf/host-tools --with-mpfr=/tmp/dgboter/bbs/rhev-vm8--rhe6x86_64/buildbot/rhe6x86_64--arm-linux-gnueabihf/build/build-arm-linux-gnueabihf/host-tools --with-mpc=/tmp/dgboter/bbs/rhev-vm8--rhe6x86_64/buildbot/rhe6x86_64--arm-linux-gnueabihf/build/build-arm-linux-gnueabihf/host-tools --with-isl=/tmp/dgboter/bbs/rhev-vm8--rhe6x86_64/buildbot/rhe6x86_64--arm-linux-gnueabihf/build/build-arm-linux-gnueabihf/host-tools --with-arch=armv7-a --with-fpu=neon --with-float=hard --with-arch=armv7-a --with-pkgversion=&#x27;GNU Toolchain for the A-profile Architecture 8.3-2019.03 (arm-rel-8.36)&#x27;</span><br><span class="line">线程模型：posix</span><br><span class="line">gcc 版本 8.3.0 (GNU Toolchain for the A-profile Architecture 8.3-2019.03 (arm-rel-8.36)) </span><br></pre></td></tr></table></figure>

<p>下载地址在这里：<a target="_blank" rel="noopener" href="https://developer.arm.com/downloads/-/gnu-a">Downloads | GNU-A Downloads – Arm Developer</a></p>
<h1 id="三、源码版本"><a href="#三、源码版本" class="headerlink" title="三、源码版本"></a><font size=3>三、源码版本</font></h1><h2 id="1-uboot"><a href="#1-uboot" class="headerlink" title="1. uboot"></a><font size=3>1. uboot</font></h2><p>uboot我用的是这个版本：<a target="_blank" rel="noopener" href="https://github.com/nxp-imx/uboot-imx/releases/tag/rel_imx_4.19.35_1.1.0">Release rel_imx_4.19.35_1.1.0: MLK-22866 imx8: Remove the optee shared memory from DDR banks · nxp-imx&#x2F;uboot-imx (github.com)</a></p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV06-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91/LV06-01-%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F-02-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20241115080005730.png" alt="image-20241115080005730" />

<h2 id="2-内核"><a href="#2-内核" class="headerlink" title="2. 内核"></a><font size=3>2. 内核</font></h2><p>内核用的这个：<a target="_blank" rel="noopener" href="https://github.com/nxp-imx/linux-imx/releases/tag/v4.19.71">Release v4.19.71 · nxp-imx&#x2F;linux-imx (github.com)</a></p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV06-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91/LV06-01-%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F-02-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20241115080058523.png" alt="image-20241115080058523" />

<h2 id="3-根文件系统"><a href="#3-根文件系统" class="headerlink" title="3. 根文件系统"></a><font size=3>3. 根文件系统</font></h2><p>根文件系统用的buildroot：<a target="_blank" rel="noopener" href="https://buildroot.org/downloads/">Index of &#x2F;downloads&#x2F; (buildroot.org)</a></p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV06-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91/LV06-01-%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F-02-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20241115080309669.png" alt="image-20241115080309669" />

<h1 id="四、准备工作"><a href="#四、准备工作" class="headerlink" title="四、准备工作"></a><font size=3>四、准备工作</font></h1><h2 id="1-服务器目录"><a href="#1-服务器目录" class="headerlink" title="1. 服务器目录"></a><font size=3>1. 服务器目录</font></h2><h3 id="1-1-tftp服务器目录"><a href="#1-1-tftp服务器目录" class="headerlink" title="1.1 tftp服务器目录"></a><font size=3>1.1 tftp服务器目录</font></h3><p>我配置完后，tftp服务器目录为<code>~/3tftp</code>：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV06-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91/LV06-01-%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F-02-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20241117101147988.png" alt="image-20241117101147988" />

<h3 id="1-2-nfs目录"><a href="#1-2-nfs目录" class="headerlink" title="1.2 nfs目录"></a><font size=3>1.2 nfs目录</font></h3><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">cd ~/4nfs</span><br><span class="line">ls</span><br></pre></td></tr></table></figure>

<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV06-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91/LV06-01-%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F-02-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20241117101305897.png" alt="image-20241117101305897" />

<p>这个目录是nfs顶层目录，后续的根文件系统会放在imx6ull_rootfs目录中：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV06-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91/LV06-01-%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F-02-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20241117101419938.png" alt="image-20241117101419938" />

<h2 id="2-IP地址"><a href="#2-IP地址" class="headerlink" title="2. IP地址"></a><font size=3>2. IP地址</font></h2><h3 id="2-1-windows"><a href="#2-1-windows" class="headerlink" title="2.1 windows"></a><font size=3>2.1 windows</font></h3><p>windows的IP如下：</p>
<figure class="highlight txt"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">windows(使用扩展坞的网口):</span><br><span class="line">	Ethernet adapter 以太网 2:</span><br><span class="line">    IPv4 Address. . . . . . . . . . . : 192.168.10.100</span><br><span class="line">    Subnet Mask . . . . . . . . . . . : 255.255.255.0</span><br><span class="line">    Default Gateway . . . . . . . . . : 192.168.10.1</span><br></pre></td></tr></table></figure>

<h3 id="2-2-ubuntu"><a href="#2-2-ubuntu" class="headerlink" title="2.2 ubuntu"></a><font size=3>2.2 ubuntu</font></h3><figure class="highlight txt"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">ubuntu(VMware新建一个桥接网卡)</span><br><span class="line">    ens37: inet 192.168.10.101  netmask 255.255.255.0  broadcast 192.168.10.255</span><br></pre></td></tr></table></figure>

<h3 id="2-3-开发板"><a href="#2-3-开发板" class="headerlink" title="2.3 开发板"></a><font size=3>2.3 开发板</font></h3><p>开发板的IP我们配置成这样：</p>
<figure class="highlight txt"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line">setenv ipaddr 192.168.10.102     # 开发板 IP 地址</span><br><span class="line">setenv ethaddr 00:04:9f:04:d2:35 # 开发板网卡 MAC 地址 b8:ae:1d:01:00:00</span><br><span class="line">setenv gatewayip 192.168.10.1    # 开发板默认网关</span><br><span class="line">setenv netmask 255.255.255.0     # 开发板子网掩码</span><br><span class="line">setenv serverip 192.168.10.101   # 服务器地址，也就是 Ubuntu 地址</span><br><span class="line">saveenv # 保存环境变量</span><br><span class="line">print ipaddr ethaddr gatewayip netmask serverip</span><br></pre></td></tr></table></figure>

<h2 id="3-uboot配置"><a href="#3-uboot配置" class="headerlink" title="3. uboot配置"></a><font size=3>3. uboot配置</font></h2><p>接下来是配置uboot的参数，uboot我使用的是我自己的仓库编译出来的：<a target="_blank" rel="noopener" href="https://gitee.com/sumumm/u-boot">u-boot: linux学习过程中的uboot仓库 (gitee.com)</a>。</p>
<h3 id="3-1-配置IP"><a href="#3-1-配置IP" class="headerlink" title="3.1 配置IP"></a><font size=3>3.1 配置IP</font></h3><p>启动之后我们要配置一下开发板的IP</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line">=&gt; setenv ipaddr 192.168.10.102     # 开发板 IP 地址</span><br><span class="line">=&gt; setenv eth1addr 32:34:46:78:9A:DD</span><br><span class="line">=&gt; setenv gatewayip 192.168.10.1    # 开发板默认网关</span><br><span class="line">=&gt; setenv netmask 255.255.255.0     # 开发板子网掩码</span><br><span class="line">=&gt; setenv serverip 192.168.10.101   # 服务器地址，也就是 Ubuntu 地址</span><br><span class="line">=&gt; saveenv # 保存环境变量</span><br><span class="line">=&gt; print ipaddr ethaddr gatewayip netmask serverip</span><br></pre></td></tr></table></figure>

<h3 id="3-2-bootargs参数"><a href="#3-2-bootargs参数" class="headerlink" title="3.2 bootargs参数"></a><font size=3>3.2 bootargs参数</font></h3><p>接下来我们设置一下启动参数，这个主要是给linux启动的时候提供根文件系统挂载的地址：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta prompt_"># </span><span class="language-bash">setenv bootargs <span class="string">&#x27;console=开发板串口,波特率 root=挂载方式 nfsroot=虚拟机ubuntu的IP地址:虚拟机ubuntu中文件系统路径,proto=传输协议 读写权限 ip=开发板IP地址:虚拟机ubuntu的IP地址:网关地址:子网掩码::开发板网口:off init=/linuxrc&#x27;</span></span></span><br><span class="line"></span><br><span class="line">=&gt; setenv bootargs &#x27;console=ttymxc0,115200 root=/dev/nfs nfsroot=192.168.10.101:/home/sumu/4nfs/imx6ull_rootfs,proto=tcp rw ip=192.168.10.102:192.168.10.101:192.168.10.1:255.255.255.0::eth0:off init=/linuxrc&#x27;</span><br><span class="line">=&gt; saveenv </span><br></pre></td></tr></table></figure>

<h3 id="3-3-bootcmd参数"><a href="#3-3-bootcmd参数" class="headerlink" title="3.3 bootcmd参数"></a><font size=3>3.3 bootcmd参数</font></h3><p>这个主要是告诉uboot去哪里下载zImage和设备树文件：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">=&gt; setenv bootcmd &#x27;tftp 80800000 /zImage\;tftp 83000000 /imx6ull-alpha-emmc.dtb\;bootz 80800000 - 83000000&#x27;</span><br><span class="line">=&gt; saveenv  </span><br></pre></td></tr></table></figure>

<h1 id="五、开发板启动测试"><a href="#五、开发板启动测试" class="headerlink" title="五、开发板启动测试"></a><font size=3>五、开发板启动测试</font></h1><h2 id="1-uboot启动"><a href="#1-uboot启动" class="headerlink" title="1. uboot启动"></a><font size=3>1. uboot启动</font></h2><img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV06-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91/LV06-01-%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F-02-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20241117104506460.png" alt="image-20241117104506460" />

<h2 id="2-拷贝内核和设备树"><a href="#2-拷贝内核和设备树" class="headerlink" title="2. 拷贝内核和设备树"></a><font size=3>2. 拷贝内核和设备树</font></h2><img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV06-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91/LV06-01-%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F-02-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20241117104540291.png" alt="image-20241117104540291" />

<h2 id="3-内核启动"><a href="#3-内核启动" class="headerlink" title="3. 内核启动"></a><font size=3>3. 内核启动</font></h2><img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV06-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91/LV06-01-%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F-02-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20241117104617184.png" alt="image-20241117104617184" />

<h2 id="4-挂载根文件系统"><a href="#4-挂载根文件系统" class="headerlink" title="4. 挂载根文件系统"></a><font size=3>4. 挂载根文件系统</font></h2><img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV06-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91/LV06-01-%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F-02-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20241117104706855.png" alt="image-20241117104706855" />

<h2 id="5-进入系统"><a href="#5-进入系统" class="headerlink" title="5. 进入系统"></a><font size=3>5. 进入系统</font></h2><p>启动成功后会提示我们登录开发板，输入root即可（主要看根文件系统构建的时候怎么配置的）：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV06-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91/LV06-01-%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F-02-%E9%A9%B1%E5%8A%A8%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20241117104754621.png" alt="image-20241117104754621" />


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